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| Para Electronics offers different types of spectroscopy products : | Radiation Monitor | ||||
| Preamplifier | Preamp & HV |Nuclear Gamma Spectrometer | | NIM Modules | ||||
| 1K MCA | 1K MCA with HV & Spectroscopy Amplifier| | Spectroscopy | ||||
| Programmable Spectrometer | Data Acquisition | ||||
| NETS - 0 : Preamplifier |
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NETS-0 is a preamplifier for Photo Multiplier Tubes with 12 or 14 pin base. NETS-0 is compatible with standard Photo Multiplier tubes. Gain can be adjusted through a single turn potentiometer. Connectors are provided for HV supply, Signal and DC power. NETS-0 is available with two types of packaging: In-line and Base Stand. |
Specifications:
| Voltage Divider | : | 10 or 12 stage with R= 510 K Ohms |
| Preamplifier | : | 2 stage transistor amplifier with emitter follower |
| Gain Adjust | : | Single turn potentiometer |
| Signal Output | : | Pulse Output with sharp rise time and 50µ Sec fall time |
| Power Supply | : | ± 15 V DC |
| H.V. Supply Connector | : | BNC female |
| Power Supply Connector | : | 3 pin female |
| Signal Output | : | BNC female |
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Model |
Configuration |
Power Supply Requirement |
| NETS-0/VD | 12 or 14 pin PMT base with 10 or 12 stage Voltage Divider, DC
de-coupled pulse output |
H.V. Supply as required by PMT |
| NETS-0 | 12 or 14 pin PMT base with 10 or 12 stage Voltage Divider,
Preamplifier pulse output |
H.V. Supply as required by PMT,
± 15 V DC |
| NETS-0 MHC | 12 or 14 pin PMT base with 10 or 12 stage Voltage Divider,
Preamplifier with Cable Driver, Built-in HV Supply |
± 15 V DC |
| NETS-0 MHC : Preamplifier, HV Supply |
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NETS-0 MHCL, shown here, has a voltage
divider, HV supply and preamplifier with cable driver output stage. It has a PMT base socket in which detector can be directly plugged. The output stage is capable of driving signal through a standard coaxial cable up to a maximum length of 100 meters. This unit requires ±15VDC power. HV supply of 1000 V @ 1mA max. for PMT Detectors is generated internally. |
Specifications:
| Voltage Divider | : | 10 or 12 stage with R= 510 K Ohms |
| Preamplifier | : | 2 stage transistor amplifier with emitter follower |
| Gain Adjust | : | Single turn potentiometer |
| Signal Output | : | Pulse Output with sharp rise time and 50µ Sec fall time |
| Output Impedance | : | 50 ohms. |
| H.V. Supply | : | Internally connected to Anode pin through Load Resistor |
| H.V. Adjust | : | Screw driver adjustment for setting H.V. between +100V to +1000 V DC |
| H.V. Monitor | : | 0 to +5 V output proportional to H.V. |
| Power Supply | : | ± 15 DC @ 150 mAmp |
| Power Supply Connector | : | 3 pin female |
| Signal Output | : | BNC female |
| H.V. Monitor Test Points | : | Test Point jacks |
| PNS - 2 : Para Nuclear Spectrometer |
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Para Nuclear Spectrometer Model PNS-2 is a
micro-controller based, stand alone, Mains operated instrument for NaI(Tl) detector based Gamma
Ray Spectroscopy. |
PNS-2 contains Spectroscopy Amplifier, SCA, HV supply for detector, power supply for preamplifier and micro based scaler/timer. PNS-2, in its
standard configuration, is supplied as preset timer, however it can be configured as Preset Counter with optional software.
PNS-2 can store 1000 readings in a non-volatile memory for data logging. These readings can be downloaded to PC via RS-232 interface or
printed via parallel interface. These readings can also be read on LCD display after the counting experiment.
PNS-2 is ideally suited for Nuclear Counting Experiments carried out in University and colleges. It is also useful for radiation counting for health
physics applications in radioisotope laboratories, nuclear reactors, nuclear power plants, environmental survey labs, etc.
NaI(Tl) Detector, PMT based Preamplifier, Lead shield around the NaI(Tl) Detector are supplied as an optional accessories for PNS-2. Please inform us your detector and shielding requirements to configure the detector and shield assembly.
Specifications:
Preamplifier Model NETS-0 ( OPTIONAL)
| Spectroscopy Amplifier | ||
| Pulse Shaping | : | Near Gaussian |
| Pole Zero Adjustment | : | Adjustable |
| Amplification | : | Fine Gain x1 to x2 , by ten turn helipot |
| Input Polarity | : | Positive |
| Output Pulse | : | +10 V max., unipolar, internally connected to SCA input |
| Single Channel Analyzer | ||
| Input | : | Internally connected to Spectroscopy Amplifier output |
| Base Line (E) | : | 0.1 to + 10 V adjustable by Helipot with calibrated dial |
| Window ( E) | : | 0.1 to + 2 V adjustable by Helipot with calibrated dial |
| Output | : | TTL pulse internally connected to counter input |
| Mode | : | Integral / Window |
| Scaler/Timer | ||
| Scaler | : | All solid state, Micro-Controller based design. |
| Timer | : | Settable between 1 and 9999 seconds in step of 1 sec |
| Number of Runs | : | Settable between 1 and 1000 |
| Menu | : | User friendly menu to set Preset Time, No. of Runs, Data Acquisition and Transfer |
| User Interface | : | 4 keys keypad with 16x2 line LCD for displaying Key function |
| Display | : | Counts : 999999 Time : 9999 Runs : 1000 |
| Data Storage | : | Store and recall facility for data up to 1000 readings |
| Preamp Power | : | +/- 15V @ 50mA , 9 Pin D type connector on Rear Panel |
| Printer Output | : | 25 pin D type connector for centronics type parallel printer |
| RS-232 Output | : | 9 pin D type female connector for data transfer to PC |
| HV Supply | : | Adjustable to 1500V by setting front panel mounted Helipot with calibrated dial |
| Power | : | 240V (+/-10 V), 50 Hz AC Mains |
| Mechanical | ||
| Dimensions | : | 230 L x 220 D x 130 H mm |
| Weight | : | Approximately 3 kg |
| Optional Accessories | : | NaI(Tl) Detector, Lead Shield |
| NETS-3M : 1K Multichannel Analyzer |
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NETS-3M is a stand alone Multi Channel Analyser which uses a Wilkinson type 6 MHz ADC, 1024 channels /data Memory with 64 K counts capacity and functional key switches for Data Acquisition, Display and Processing. NETS-3M is equipped with backlit Graphics Liquid Crystal Display (LCD) to monitor data acquisition process. NETS-3M is provided with RS232 serial interface for data transfer to a Personal Computer for advanced data processing and spectrum display. |
Specifications:
| Data Memory |
| 1024 channels, 64K counts per channel, 9999 counts numeric display per channel |
| ADC |
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10 Bit, 6.14 MHz Wilkinson type. Input pulse rise/fall 1 msec, 8,4, and 2 volts full scale ranges, LLD 50 mVolts to 4 Volts adjustable. Dead time indication by LED brightness, ADC ON/OFF by function keys and toggle switch. 6 KHz input pulse rate maximum. |
| Display |
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Backlit graphics LCD for spectrum display. 114mm x 64mm view area. 240 x 128 dot matrix display. 256 points resolution on X & Y axes. X axis displays 64 to 1024 channels full scale in 5 settings. Y axis displays 256 to 64K
counts full scale in 9 settings. Selectable cursor displayed by 5 vertical dots. Scale display by horizontal 5 dots. |
| Software |
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NETS-3M includes Windows based Spectrum Analysis software package PSAS/W. This software enables user to transfer the acquired spectrum to a PC through COM port and carry out the Spectrum Analysis. All the necessary functions such as Spectrum Smoothing, Normalization, Peak Calculations, ROI Set/Reset are part of the PSAS/W package. Printing and storage of spectra are provided to enable user to save the data or print the spectrum/data as per his requirement. This user friendly software package offers itself as a handy tool for Spectrum Analysis. |
| NETS-3 MU : 1K Multichannel Analyzer with HV Supply & Spectroscopy Amplifier |
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NETS-3M/U is a 1K Multichannel Analyzer with HV Supply and
Spectroscopy Amplifier. It is a mains operated instrument for
NaI(Tl) detector based spectroscopy. |
NETS-3M/U uses a Wilkinson type 6 MHz
ADC with 64K counts capacity per channel. It is equipped with backlit
graphics Liquid Crystal Display (LCD) to monitor data acquisition and
perform data analysis. Data analysis includes the Centroid and FWHM
calculation. User can analyse the ROI in the unit itself without need
for a PC. At a time, maximum 10 ROIs can be set. This MCA also has a
facility to calibrate the spectrum. Straight Line method (y=mx + c) is
used for calibration.
NETS-3M/U supports serial communication. A software package (NETSWIN)
will be supplied at free of cost to the users along with the MCA. This
package operates on Windows 98/XP/2K operating system. This package can
control the data acquisition using real time clock of the PC. This
facility makes it useful for experiments where the experiment time is
more than 10 to 12 hours. User can set the experiment time and start the
acquisition. The package automatically halts the acquisition once the
acquisition time is over.
NETS-3MU can be supplied optionally with built-in preset Timer with
Live/Real time selection. The time is settable between 1 to 9999 secs.
Specifications:
| Spectroscopy Amplifier | ||
| Input Polarity | : | Positive /Negative |
| Shaping Time Constant | : | 2 µsecs |
| Pulse Shape | : | Unipolar, Near Gaussian |
| Gain | : |
Coarse : x1 to x2 High/Low
selection switch on front panel
Fine : x1 to x 5, Adjustable through 10 turn helipot on front panel Normal : Around 50 |
| Base Line Restoration | : | Available |
| High Voltage Supply | ||
| Output | : | 0 to +1500 V @ 500 µA max adjustable through 10 turn helipot on the front panel |
| Low Voltage Power Supply for Preamplifier | ||
| Output | : | ±15V as required by preamplifier |
| 1 K Channel MCA | ||
| Data Memory | : | 1024 channels, 64K counts per channel |
| ADC | : | 0 Bit, 6.14 MHz Wilkinson type, 2/4/8 V full scale range, LLD 50 mVolts to 4 Volts adjustable. Dead time indication by LED brightness |
| Display | : | 320 x 240 pixels Graphics LCD for spectrum display and data analysis. |
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KeyBoard |
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In this new version of MCA,
user can perform ROI analysis without a need for PC. NETS-3M/U has
different modes of operation. In Setup mode, user can set the ROI
start and stop channel using Cursor keys. Maximum 10 ROIs can be
set at a time. |
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ACCESSORIES |
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Software :
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NETS-3M/U includes Windows based Spectrum Analysis Software package.
This software enables user to transfer the acquired spectrum to PC on
serial port and carry out the Spectrum Analysis. All the necessary
functions such as Spectrum Smoothing, Normalization, Peak Calculations,
ROI Set/Reset are part of the software. Other facilities include
Spectrum Calibration, Printing and Storage of Spectrum.
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We can customize this package as per the user requirement. For example, the report format can be changed if desired. For ESL Tarapur, we have provided additional facility to perform Cumulative Effective Dose (CED) calculations. CED report is generated for all the regular employees and contract people. All the data is finally stored in a common report file.
| PPS - 1 : Para Programmable Spectrometer |
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Para
Programmable Spectrometer, Model PPS-1 is a Micro-controller based mains
operated, PC controlled instrument suitable for Counting Applications.
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It enables user to fix the parameters like Coarse Gain, HV,
LLD or Window level of the system for required isotope being
used on regular basis. These parameters for different radio
isotopes are stored on PC. At the beginning, keep the radio
isotope of interest. Through software package supplied with
the instrument, user can adjust High Voltage of Detector,
Coarse Gain of Amplifier, Threshold and Window level of SCA.
After setting of the instrument, user can store all these
parameters in a file. Likewise user can fix the parameters
for different radio isotopes and save them in file format.
Later on, whenever the radio isotope is changed, reload the
file for the radio isotope of interest. The software package
will transfer the parameter values to instrument through
serial communication. The instrument will automatically
adjust all its parameters for the selected radio isotope.
PPS-1, consists of Spectroscopy Amplifier, SCA, HV supply
for detector. Analog switches are used in Spectroscopy
Amplifier to control the Coarse Gain of the Amplifier. Fine
gain of the amplifier is adjustable through 10 turn helipot
on front panel. 8 BIT DACs are used to adjust High Voltage,
Threshold and Window Set Point.
NaI(Tl) Detector, PMT Preamplifier, Lead Shield for NaI(Tl)
detector are supplied as optional accessories for PPS-1.
Detector and shield assembly are supplied as per user
requirement.
Specifications:
| Spectroscopy Amplifier | ||
| Input | : | Output signal from pre-amplifier |
| Input Polarity | : | Positive |
| Shaping | : | 0.5 µsec / 1 µsec near Gaussian (Internal jumper selection) |
| Gain | : | x300 Overall |
| Coarse Gain | : | x1, x2, x4 and x8 selection through serial port |
| Fine Gain | : | Adjustable through 10 turn heliopt with dial |
| Base Line restoration | : | Available internally |
| Output | : | Unipolar positive shaped semi gaussion pulse |
| Pulse Amplitude | : | Program controlled between 0 and 10 volts |
| (EMI Shielding is provided between Amplifier and HV supply | ||
| Coarse : High/Low (internally settable) Fine : 5:1 in the set range |
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| Time Constant | : | 1 µsec |
| Pulse Shape | : | Unipolar, Near Gaussian |
| Gain | : | High/Low (internally settable) Fine : 5:1 in the set range |
| Output Pulse | : | 0 to 10 V max (settable through Gain Adj) Connected internally to NETS-3 MCA |
| Input Connector | : | BNC female connector |
| High Voltage Supply | ||
| Output | : | 0 to +1000 V @ 1 mA max (0 to 1500 V @ 1mA optional) |
| Output Adjust | : | Continuously adjustable through 10 turn helipot with calibrated dial |
| Output Connector | : | UHF female |
| Low Voltage Power Supply for Preamplifier | ||
| Output | : | ±15V as required by preamplifier |
| Output Connector | : | 3 pin connector |
Copyright © 2007 Para Electronics, Manufacturing Division of Electronic Enterprises (I) Pvt. Ltd.